Below we will go through the individual steps to assemble a stripped upper receiver. The installation and assembly of the barrel, handguard's and front sights will take place separately on different pages.

A few items before you start. You might want to mask the upper with tape to prevent marring the finish if a tool should happen to slip. I use masking tape with duct tape over the top of it. The duct tape protects very well and the masking tape makes it easy to remove.